Exelon must address nuclear power plant's flood response plan

The U.S. Nuclear Regulatory Commission (NRC) sent a letter to Exelon Corp. (NYSE: EXC) to address the NRC’s concerns with the 1,700 MW Dresden Nuclear Station’s response plan for external flooding events. The two-unit plant is located in Morris, Ill.

NRC inspectors identified multiple areas of concern during recent inspections conducted in response to the disaster at the Fukushima Daiichi nuclear power plant in Japan. The issues pertain to the plant’s plan to respond to a Probable Maximum Flood, which is a hypothetical flooding level that represents the largest conceivable flood from a combination of the most severe meteorological and hydrologic conditions. Such conditions are highly improbably and have never been known to happen in the area. The issues with the flood plan do not represent an immediate safety issue but are an area where NRC would like additional information.

The two main areas of concerns with the flood response plan are: The quality and viability of the procedure, and the availability and capability of equipment specified in the response plan to fulfill their intended functions.

Dresden was originally licensed for operation in 1966 for a flood value of 506.4 feet above mean sea level. The reactor and other plant structures were constructed at 517 feet above mean sea level, 10 feet above historic flood levels. The NRC changed flood design criteria in 1982, and Dresden developed a response plan to address the disparity between the original and the revised design bases for flooding.

Subscribe to Nuclear Power International magazine

Sponsored by FLSmidth

Related Articles

Westinghouse continues to provide nuclear fuel to French power plants

Westinghouse Electric Co. and EDF signed a new long-term nuclear fuel contract to support EDF’s nuclear power plants in France.

Susquehanna nuclear unit 1 returned to service after leak found

Workers at PPL’s (NYSE: PPL) Susquehanna nuclear power plant reconnected Unit 1 to the grid after repairing a small leak inside the containment structure.

Follow Power Engineering on Twitter

Latest News

American wind power rebounds in 2014, but stable policy still needed

The fourth quarter 2014 wind energy industry report released yesterday by the American Wind E...

Weekly Coal Production Report

The Weekly Coal Production Report has been updated for the week ended January 24, 2015.

Hawaii energy executives tell lawmakers plans for takeover

An official at NextEra Energy told Hawaii lawmakers that his company does not plan to lay off...

Dominion seeks rate freeze against opposition on many fronts

Virginia's biggest electric utility wants to weaken state oversight of its rates, saying the ...

GE to supply turbines for wind power project in China

GE (NYSE: GE) will supply 55 units of its 2.75-120 brilliant wind turbines to Huaneng Corp.’s...
Renewable Roundtable Discussion

Power Engineering Photo of the Day

Company to supply doors to Chernobyl nuclear plant site

Groupe Gorge, through its subsidiary, Baumert, won a new order to supply technical doors to t...

Siemens to maintain California natural gas-fired power plant

Siemens (NYSE: SI) was awarded a long-term service agreement for the 507-MW Blythe Energy Cen...

Power Engineering Current Issue

03/01/2014
Volume 118, Issue 3
1403PE-cover

Products Showcase

Dynamic Fluoride Ion cleaning DFIC of industrial natural gas turbines Hi-Tech Furnace Systems

Dynamic Fluoride Ion Cleaning of IGT Parts

The Dynamic Fluoride Ion Cleaning (DFIC) Process from Hi-Tech Furnace Systems is able to clean deep, narrow cracks of oxides by cycling between negative, atmospheric, and positive pressure.

Archived Articles

2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013

Power Industry Wire News

Forbes Magazine Ranks Precision Frac #4

Forbes Magazine Ranks Precision Frac #4

Vectren to Discuss 2014 Results and 2015 Outlook on Conference Call

Vectren to Discuss 2014 Results and 2015 Outlook on Conference Call

Vectren Declares Quarterly Dividend

Vectren Declares Quarterly Dividend

NV5 Appoints Francois Tardan to Board of Directors

NV5 Appoints Francois Tardan to Board of Directors

Enbridge Energy Partners, L.P. Confirms Distribution Increase for Fourth Quarter 2014

Enbridge Energy Partners, L.P. Confirms Distribution Increase for Fourth Quarter 2014

Power Engineering

Article Archives for Power Engineering Magazine

Continuing Education

Professional Development Hours

To access a course listing associated to a specific topic listed below, click on the topic of choice from the list below.

Latest Energy Jobs

View more Job Listings >>